Editors: 1905, J. W. Leonard.--1911-26, A. N. Marquis.
Title varies: 1905-17 (1st-3d ed.) The Book of Chicagoans.--1926-36 (4th-6th ed.) Who's who in Chicago and vicinity.--1941 (7th ed.) Who's who in Chicago and vicinity, enlarged to include the entire State of Illinois.